Yields the notifications that are new since the last call. Injected into
the watch loop, so the loop has no dependency on any data client and is
fully testable with a fake watcher. The account watcher is the built-in;
write your own by returning Notification<YourPayload>[].
Yields the notifications that are new since the last call. Injected into the watch loop, so the loop has no dependency on any data client and is fully testable with a fake watcher. The account watcher is the built-in; write your own by returning
Notification<YourPayload>[].